Originally Posted by
scaryjim
1) I don't see Haswell being a worthy upgrade from an i5 2500k, personally: follow CAT's advice and grab an mATX/mITX Z77 board.
2) read the measurment specs of any new case you consider very carefully. A lot of mATX, and even some mITX, cases are actually bigger in footprint* (and sometimes in absolute size) than ATX mid-tower cases. I'm often shocked by just how big some of the cases people suggest are when looking for an SFF system. This is particularly true of cube cases. You need to consider if it's worth the hassle and expense for the amount of room you will (or won't) be saving...
*when I say footprint, I mean the area a case covers when it's sat on a desk/the floor. I'm assuming that's what you mean too. I you mean total volume, an mATX case is likely to be somewhat smaller, but it's still worth chekcing the actual size as there is often very little saving...